摘要
To use 3-dimensional ultrasonography (3D-US) to determine the frequency of post-voiding residual volume (PVRV) ≥100 mL in primiparae 3 days after receiving epidural anesthesia for vaginal delivery. Potential relationships between day-3 PVRV ≥100 mL and obstetrical–pediatric parameters, especially those possibly implicated in post-obstetrical bladder dysfunction, were examined.